In Season 1, Episode 14, titled "Upgrade," the story focuses on the supernatural "Callings" and the growing tension between passengers and fanatical groups . While there isn't a specific technological "helpful feature" like a software update, the episode highlights a significant narrative "upgrade" in how the characters interact with their abilities:
Using "Relics" to upgrade a game and make players feel more powerful . [S1E14] Upgrade
Upgrading clothing via Great Fairies .